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Journal of Life Sciences 2018年第3期12卷 141-149页

作者： N. N. Yin Y. Y. Theint k. M. Myaing S. S. Oo O. k.in M. Yin M. T.Aye H. H. Hlaing k. swe Naing k.i Win Department of Agricultural Research (DAR) Yezin Nay Pyi Taw 15013 Myanmar

Population fluctuation of oriental fruit fly, Bactrocera dorsalis （Hendel）（Diptera： Tephritidae）, was monitored by using methyl eugenol traps during May, 2011 to December, 2011 and May, 2016 to December, 2016 in mango orchard farms of Department of Agricultural Research in Yezin, Myanmar. In 2011, the highest mean number of male oriental fruit flies/trap/day （241.42 ± 11.79） was recorded in June and the lowest （2.21 ± 0.40） in December. The highest mean number of male oriental frui t flies/trap/day （388.95 ± 8.56） was recorded in the month of June and the lowest （2.33 ± 0.20） in December, 2016. Population data were correlated with meteorological data including temperature, duration of sunshine, and rainfall. Population fluctuation of male fruit flies was positively correlated with temperature and rainfall, and negatively correlated with the duration of sunshine.

关键词： Oriental fruit fly Bactrocera dorsalis population fluctuation mango orchard.

Effect of silicone oil on the microstructure, gelation and rheological properties of sorbitan monostearate–sesame oil oleogels

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Asian Journal of Pharmaceutical Sciences 2018年第5期13卷 485-497页

作者： Mya Thet Htar swe Panida Asavapichayont Department of Pharmaceutical Technology Faculty of Pharmacy Silpakorn University Pharmaceutical Biopolymer Group (PBi G) Faculty of Pharmacy Silpakorn University

Oleogels contain oil or a non-polar liquid which is gelled with an agent called an organogelator. The aim of this study was to evaluate the effects of the addition of silicone oil(cyclopentasiloxane) to the gelation process and to the properties of sorbitan monostearate(SMS)–sesame oil oleogel and compared with that of SMS–sesame oil oleogel and SMS–cyclopentasiloxane oleogel. Three different oil phases; sesame oil phase, cyclopentasiloxane phase and a mixture of cyclopentasiloxane and sesame oil, were used to prepare oleogels with SMS gelator. The critical gelling concentrations(CGC) for oleogels were determined using different concentration of SMS in a range of 5%–22%(w/w). The characterization of the developed oleogels was done using Fourier transform infrared spectroscopy(FTIR), polarized light microscope, rheometer, X-ray diffraction(XRD) and differential scanning calorimetry(DSC). The addition of cyclopentasiloxane reduced the CGC of SMS–sesame oil oleogel from 20% to 10%(w/w). In microscopic characterization, the oleogels with a mixture of oil phases showed the longer and thick.r three-dimensional gel network.than that of oleogels with sesame oil and cyclopentasiloxane. FTIR studies demonstrated that this network.formation was mainly due to hydrogen bonding. Rheological measurements revealed that the combination of cyclopentasiloxane and sesame oil produced strong gel with higher complex modulus values and longer linear viscoelastic region than oleogels prepared with sesame oil and cyclopentasiloxane. In addition, oleogels with the combination of the two oils had higher enthalpy( H m) and entropy( S m) thus could increase thermodynamic stability of the oleogels. Therefore, the addition of cyclopentasiloxane can improve the physical, ther-mal properties and stability of SMS–sesame oil oleogel, provide greater sensory profile and better product aesthetics. The developed oleogel can be a novel carrier for topical drug delivery.

关键词： Oleogel Microstructure Rheology Sesame oil Silicone oil Sorbitan monostearate

Role of the Actors in Myanmar Peace Process(2011-2020)

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Role of the Actors in Myanmar Peace Process(2011-2020)

作者： Chaw Ei swe 华中师范大学

学位级别：硕士

自获得独立以来的数十年间,缅甸一直被内战困扰,围绕着国家的形式、权力分配和种族平等争论不休。缅甸政府是根据确保民族平等、民族自治的《彬龙协定》建立起来的,但该协议却从未兑现。这也是时至今日缅甸政府与民族武装团体之间不断... 详细信息

自获得独立以来的数十年间,缅甸一直被内战困扰,围绕着国家的形式、权力分配和种族平等争论不休。缅甸政府是根据确保民族平等、民族自治的《彬龙协定》建立起来的,但该协议却从未兑现。这也是时至今日缅甸政府与民族武装团体之间不断发生武装冲突的根本原因。正在进行的和平进程由登盛政府于201 1年发启,旨在通过政治手段解决长达数十年的民族武装冲突。自和谈开始以来,民族武装组织(EAO)积极参与,在谈判桌上寻求通过政治来解决他们的不满。全国停火协议(NCA)是政府和民族武装组织通力合作的结果,为此后的政治对话铺平了道路。今日的和平进程亦是基于该协议得以实现。然而,全国停火协议并没有为缅甸带来和平,因为一些民族武装团体,包括最大的两个,即佤邦联合军(UWSA)和克钦独立军(k.A)拒绝签署全国停火协议。缅甸和平进程变得更为复杂:如何实施当前基于全国停火协议的和平进程,并将未签署全国停火协议的民族武装团体带到谈判桌上。2016年,民主派领导人昂山素季上台执政,继续执行上届政府发起的基于全国停火协议的和平进程。该政府以实现全国停火协议为核心,发起了 21世纪彬龙联盟和平会议。冲突利益攸关方之间开始了一系列正式对话,旨在恢复历史悠久的彬龙协议的团结精神,将所有民族武装团体拉回谈判桌上,以结束战斗,并就纳入联盟协议的内容签订协议。这将为旨在建立民主联邦的宪法修正案奠定基础。本研究旨在研究主要利益攸关方在和平进程中的作用;政府、民族武装组织和缅甸国防军,并进一步研究为缅甸长达数十年的民族武装冲突寻找解决方案。

关键词：和平进程政府民族武装组织民主联邦

Applied bias photon-to-current conversion efficiency of ZnO enhanced by hybridization with reduced graphene oxide

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Journal of Energy Chemistry 2017年第2期26卷 302-308页

作者： Sharifah Bee Abdul Hamid swe Jyan Teh Chin Wei Lai Siglinda Perathoner Gabriele Centi Nanotechnology and Catalysis Research Centre (NANOCAT) University of Malaya Department of Industrial Chemistry University of Messina

The role of reduced graphene oxide（rGO） in the enhancement of photo-conversion efficiency of ZnO films for photoelectrochemical（PEC） water-splitting applications was analyzed. ZnO and rGO-hybridized ZnO（rGO/ZnO） films were prepared via a two-step electrochemical deposition method followed by annealing at 300 °C under argon gas flow. The physical, optical and electrochemical properties of the films were characterized to identify the effect of rGO-hybridization on the applied bias photon-to-current efficiency（ABPE） of ZnO. Scanning electron microscopy and X-ray diffraction indicated the formation of verticallyaligned, wurtzite-phase ZnO nanorods. Diffuse-reflectance UV–visible spectroscopy indicated that rGO-hybridization was able to increase the light absorption range of the rGO/ZnO film. UPS analysis showed that hybridization with rGO increased the band gap of ZnO（3.56 eV） to 3.63 eV for rGO/ZnO sample,which may be attributed to the Burstein–Moss effect. Photoluminescence（PL） spectra disclosed that rGOhybridization suppressed electron-hole recombination due to crystal defects. Linear sweep voltammetry of the prepared thin films showed photocurrent density of 1.0 and 1.8 m A/cm;for ZnO and rGO/ZnO at+0.7 V, which corresponded to an ABPE of 0.55% and 0.95%, respectively. Thus, this report highlighted the multi-faceted role of rGO-hybridization in the enhancement of ZnO photo-conversion efficiency.

关键词： Zinc oxide Photoelectrochemical water-splitting Reduced graphene oxide Photo-conversion efficiency

Observed characteristics of flow,water mass,and turbulent mixing in the Preparis Channel

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Acta Oceanologica Sinica 2023年第2期42卷 83-93页

作者： Ruijie Ye Feng Zhou Xiao Ma Dingyong Zeng Feilong Lin Hongliang Li Chenggang Liu Soe Moe Lwin Hlaing swe Win Soe Pyae Aung State k.y Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou310012China School of Oceanography Shanghai Jiao Tong UniversityShanghai200030China Geology Department Dagon UniversityYangon11422Myanmar National Analytical Laboratory Department of Research Innovation Ministry of EducationYangon11061Myanmar Port and Harbour Engineering Department Myanmar Maritime UniversityYangon11293Myanmar

Preparis Channel is the very important exchange path of energy and materials between the northern Bay of Bengal and Andaman Sea(AS).A set of hydrographic measurements,a microstructure profiler,and a deep mooring were used to determine the characteristics of water masses,turbulent mixing,and flows in the Preparis *** unprecedented short-term mooring data reveal that a deep current in the deep narrow passage(below 400 m)of the Preparis Channel flows toward the Bay of Bengal(BoB)with a mean along-stream velocity of 25.26 cm/s at depth of 540 m;above the deep current,there are a relatively weak.current flows toward the AS with a mean along-stream velocity of 15.46 cm/s between 500 m and 520 m,and another weak.current flows toward the BoB between 430 m and 500 ***,a sandwiched vertical structure of deep currents(below 400 m)is present in the Preparis *** volume transport below 400 m is 0.06 Sv(1 Sv=106 m^(3)/s)from the AS to the *** the upper layer(shallower than 300 m),the sea water of the AS is relatively warmer and fresher than that in the BoB,indicating a strong exchange through the *** profiler observations reveal that the turbulent diffusivity in the upper layer of the Preparis Channel reaches O(10−4 m^(2)/s),one order larger than that in the interior of the BoB and over the continental slope of the northern *** speculate that energetic high-mode internal tides in the Preparis Channel contribute to elevated turbulent *** addition,a local“hotspot”of turbidity is identified at the deep mooring site,at depth of about 100 m,which corresponds to the location of elevated turbulent mixing in the Preparis Channel.

关键词： deep flow turbulent mixing water mass Preparis Channel

阴影条件下基于迁移强化学习的光伏系统最大功率跟踪

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控制与决策 2020年第12期35卷 2939-2949页

作者：杨博 THIDAR swe 钟林恩束洪春张孝顺余涛昆明理工大学电力工程学院昆明650500 汕头大学工学院广东汕头515063 华南理工大学电力学院广州510640

在光伏系统中,光伏阵列往往会受到阴影条件(partial shading condition,PSC)的影响,造成光伏系统输出功率偏低以及功率-电压(P-V)特性曲线出现多峰值的现象,从而导致常规最大功率跟踪(maximum power point track.ng,MPPT)算法易陷入局... 详细信息

在光伏系统中,光伏阵列往往会受到阴影条件(partial shading condition,PSC)的影响,造成光伏系统输出功率偏低以及功率-电压(P-V)特性曲线出现多峰值的现象,从而导致常规最大功率跟踪(maximum power point track.ng,MPPT)算法易陷入局部最优的问题.对此,设计一种基于迁移强化学习(transfer reinforcement learning,TRL)的MPPT算法.该算法将连续变量的动作空间分解为若干个小范围的子搜索空间,从而有效提高TRL的学习效率.同时,引入知识迁移,即将旧任务的最优知识矩阵应用到新任务中,进而大幅提高TRL的收敛速度.通过对3种算例的研究,即恒温变光照强度、变温变光照强度和香港实地测试,其仿真结果表明,与传统增量电导法(incremental conductance,INC)、遗传算法(genetic algorithm,GA)、粒子群优化(particle swarm optimization,PSO)算法、人工蜂群(artificial bee colony,ABC)算法、布谷鸟算法(cuck.o search algorithm,CSA)、教-学优化(teaching-learning based optimization,TLBO)算法以及Q学习算法相比,TRL能在PSC下实现最快速的全局最大功率跟踪,同时具有最小的功率波动.最后,基于dSpace的硬件在环实验验证了TRL的硬件可行性.

关键词：光伏系统最大功率跟踪迁移强化学习动作空间分解

Study of Unsteady Flow Simulation of Back.ard Impeller with Non-uniform Casing

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Journal of Thermal Science 2017年第3期26卷 208-213页

作者： War War Min swe Hiroya MORIMATSU Hidechito HAYASHI Tetsuya Ok.MURA Ippei ODA Nagasak. University 1-14 Bunkyo-machiNagasaki 852-8521Japan Panasonic Ecology Systems Co. Ltd.4017 Aza Shimonakata takaki-choKasugai486-8522Japan

The flow characteristics of the centrifugal fans with different blade outlet angles are basically discussed on steady and unsteady simulations for a rectangular casing fan. The blade outlet angles of the impellers are 35° and 25° respectively. The unsteady flow behavior in the passage of the impeller 35° is quite different from that in the steady flow behavior. The large flow separation occurs in the steady flow field and unsteady flow field of the impeller 35°, the flow distribution in the circumferential direction varies remark.bly and the flow separation on the blade occurs only at the back.region of the fan; but the steady flow behavior in the impeller 25° is almost consistent with the unsteady flow behavior, the flow distribution of the circumferential direction doesn't vary much and the flow separation on the blade hardly occurs. When the circumferential variation of the flow in the impeller is large, the steady flow simulation is not coincident to the unsteady flow simulation.

关键词： Centrifugal fan Impeller Blade outlet angles Steady and unsteady simulation Rectangular casing

Novel layer-by-layer assembly of rGO-hybridised ZnO sandwich thin films for the improvement of photo-catalysed hydrogen production

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Journal of Energy Chemistry 2016年第2期25卷 334-342页

作者： swe Jyan Teh Chin Wei Lai Sharifah Bee Abd.Hamid Nanotechnology & Catalysis Research Centre (NANOCAT) 3rd Floor Block A Institute of Postgraduate Studies (IPS) University of Malaya 50603 Kuala Lumpur Malaysia

Metal oxide semiconductor materials such as ZnO have tremendous potential as light absorbers for photocatalysed electrodes in the electrochemical reduction of water. Promoters such as rGO have been added to reduce the recombination losses of charge carriers and improve its photoelectrochemical activity. In this study, the effect of layer ordering on the charge transfer properties of rGO-hybridised ZnO sandwich thin films for the photo-catalysed electrochemical reduction of water was investigated. rGO-hybridised ZnO sandwich thin films were prepared via a facile electrode position technique using a layer-by-layer approach. The thin films were analysed using FESEM, XRD, Raman, PL, UV–vis, EIS and CV techniques to investigate its morphological, optical and electrochemical properties. The FESEM images show the formation of distinct layers of rGO and ZnO nanorods/flak.s via the layer-by-layer method. XRD confirmed the wurtzite structure of ZnO. PL spectroscopy revealed a reduction of photoemission intensity in the visible region（580 nm） when rGO was incorporated into the ZnO thin film. Among the six thin films prepared, ZnO/rGO showed superior performance compared to the other thin films（0.964 m A/cm） due to the presence of graphene edges which participate as heterogenous electrocatalysts in the photocatalysed electrolysis of water. rGO also acts as electron acceptor, forming an n-p heterojunction which improves the activity of ZnO to oxidise water molecules to O2. EIS revealed that the application of rGO as back.contact（rGO/ZnO, rGO/ZnO/rGO） reduces the charge transfer resistance of a semiconductor thin film. Alternatively, rGO as front contact（ZnO/rGO, rGO/ZnO/rGO） improves the photo-catalysed electrolysis of water through the participation of the rGO edges in the chemical activation of water. The findings from this study indicate that the layer ordering significantly affects the thin film＇s electrostatic properties and this understanding can be further advantageous fo

关键词： Heterojunction Layer-by-layer assembly ZnO thin film Photocatalysis

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金属基复合材料中的残余应力测量

宇航材料工艺 1990年第2期20卷 63-68,72页

作者： swe Den Tsai 钟守仁

由于金属基复合材料中连续纤维和金属基体间的热膨胀系数存在很大差别,将复合材料从制造温度冷却至室溫时,会产生很大的残余应力。本文首先简短描述用于测量残余应力的X射线方法,然后给出并讨论所获得的残余应力结果。实验都是在铝、镁... 详细信息

由于金属基复合材料中连续纤维和金属基体间的热膨胀系数存在很大差别,将复合材料从制造温度冷却至室溫时,会产生很大的残余应力。本文首先简短描述用于测量残余应力的X射线方法,然后给出并讨论所获得的残余应力结果。实验都是在铝、镁和钛金属基体复合材料上进行的。本文主要测量铝-石墨系统中的残余应力。应当注意,由于石墨纤维中强织构造成的困难,本文报道的残余应力只是基体相的。

关键词：复合材料金属基残余应力测量

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并网光伏逆变器鲁棒分数阶滑模控制设计

控制理论与应用 2020年第2期37卷 374-386页

作者：杨博 THIDAR swe 钟林恩束洪春余涛孙立明昆明理工大学电力工程学院云南昆明650500 华南理工大学电力学院广东广州510640 广州水沐青华科技有限公司广东广州510898

本文设计了一款基于扰动观测器的鲁棒分数阶滑模控制(POFO–SMC)来实现光伏逆变器的最大功率跟踪(MPPT).首先,将光伏逆变器的非线性、参数不确定性以及未建模动态聚合成一个扰动,并通过扰动观测器对其进行在线估计.随后,采用分数阶滑模... 详细信息

本文设计了一款基于扰动观测器的鲁棒分数阶滑模控制(POFO–SMC)来实现光伏逆变器的最大功率跟踪(MPPT).首先,将光伏逆变器的非线性、参数不确定性以及未建模动态聚合成一个扰动,并通过扰动观测器对其进行在线估计.随后,采用分数阶滑模控制(FOSMC)对该扰动估计进行实时完全补偿,从而实现不同工况下全局一致的控制性能.同时,POFO–SMC采用扰动实时估计而非传统滑模控制(SMC)中所使用的扰动上限值进行补偿,因此可有效解决传统SMC过于保守的缺点,使得控制成本更为合理.最后,POFO–SMC无需精确的系统模型,仅需测量光伏逆变器的q轴电流和直流侧电压,因此易于硬件实现.本文进行了两个算例的研究,即光照强度变化和电网电压跌落.仿真结果表明,与传统PI控制、反馈线性化控制(FLC)、SMC和FOSMC相比,POFO–SMC在各类工况下均具有最好的动态特性及最高的鲁棒性.基于dSpace的硬件在环实验(HIL)验证了其硬件可行性.

关键词：光伏逆变器最大功率跟踪鲁棒分数阶滑模控制扰动观测器